Winding mechanism



1 June 15, 1948.

Filed Jan. 17, 1947 W. J. ELVIN ETAL WINDING MECHANISM 3 Sheets-Sheet 1 Wmw EYS E INVENTORS WILLIAM \J. ELVIN. ELMEF? R.STAHL.

June w J, ELV|N ETAL 2,443,231

WINDING MECHANISM Filed Jan. 17. 1947 3 Sheets-Sheet 2 I nu INVENTORS WILLIAM ,1. ELVIN.

ELMER R. STAHI.

TTORNEYS June 15, 1948. J, ELvlN AL 2,443,231

WINDING MECHANI SM Filed Jan. 17, 1947 3 Sheets-Sheet 3 1 6 25 EF- I INVENTORS WILLIAM .J. ELVIN. BY ELMER R STAHL.

Patented June 15,. 1948 wisest-mt; mass-m,than

. Stahl, Meyersdale, Pa assigno'rs, tofCelanese Corp oratioir'of America, a,co -porationo! Dela- ,1 J I Y ippncamlmaary1-1, 194i, $erial No. 722.,638 l st-1mg,,

f fi c i t t- This invention relates-to a Yarn, take u p device comprising atake-upbucket or Topham box; and relates more particularly-to improved yarn traverse-meansvfor the take-up device. Anobject of'this invention'iis to provide 1111-, proved mechanism for trav'ers'ing'fvarn in, atakeup bucket or Topham boinf M j Another object of thisinvention is to provide improved mechanism for traversing yarn "in" a take-up bucket or .Topham j box smoothly?" and evenly and at unusually high s'peedsQ} ,f I t '1 I Still another objectof this invention 'is' topro; vide yarn traversing means'for a take-up", bucket or Topham bo'xfwherein the; traverse 'stroke is not only adjustable but, may also be varied even while" the yarn traversing means Ti'suin, oiier'ation."

A further object of this invention is he provision of yarn traversing i'mea'ns 0 ""a take-up bucket or! j'I'o ham, x i nm $fb js ng clear "of the take up' buc et prjTqlihanijibox. when;

the latter i full; so as. to]; rmit? racy removal of the yarncake fo me without d' turbing the precise j adjustment of the traverse, stroke;

Qther objects of'this invention-win aiipearrmn the following detailed description an em ny ngdr wm I a a 1 xwe le i o a ri a y re chin devi s o i ef Y m" a e- 11i buckets wherein" the novel yarn traversir'fg means of ourinvention may beemployed V J i Fig. 2 is a perspective view, partly broken away, i of our novel yarn traversing nechar'fism'inoper ative positionflover a takeup bucket,

Fig; 3 isa detailof a locking mechanisml'which is provide'dfforlocking'the novel yarn traversing means inoperative position, i

Fig. 4' is 'a', side-elevational viev'v'v lofi the. novel. yarn traversing mechanism at"thejbase Q the. normal traverse strok e fj I Q .j

'Fig; 5" is a side-elevational view Of fihBKIII OVGI yarn traversing"mechanisrnatthe top" of the normaltraversestroke,and

yarn traversing mechanism showing the locking 'mechanism dise'ngagedlto. allowthe traversing Fig. 6is a side-'elevational view xdfloiir" novel generally ijndicated byl .refere fl I 3 where they, are softened by being subjected to, the action of hot water or steamunder Prssure The softened yarns are then, stretched. to any tatably mounted on a pin 38 carried in a. bracket:

- the btatitn forta' eiib bucket 21.2fm high s desired degr eeby suitable 'stretchtrollers; 14,. is

and "I 6,1 espectively operating at .the ne essa speed, differentials to impart the desired stretch. Eachoflthe stretched yarns I0 is led over a roller I! where s; suitable'lubricantor condition; ingagent is applied and then .each individual yarn is wound a numbenof times aboutv a separate godet wheel lB'rotated by a driven shaft i9 and then over aguide rod 26 which acts to keep the arn""win ding's separated as the yarn .is

advanced along saidg'odet wheel.

Q'Ifhe yarn, "lll is passed through affunnei yarn, guide} I fwhile still ina wet condition and is thus led into fa: take up bucket 22fwhich is nor causes said ams, be thrown outwardly. again A the-innerfsurface or thetake-upfpucket 22 an The even- 'distribution of the yarn windingsitoj form cake Z'lis 'efiected by the traversing act on ofjfunnel-yarnguide H which is mounted. on a indicated by reference numeral 29 Thelsupport il'lgf arrangement comprises a thre aded bushing L 30 in frictional engagement with funnel yarn. I guide 2l arid provided with a knurledgripf or handletl""for'convenient adjustment] Bushing, 30'is'mounted on a horizontal plate 32and may. be held in J 'any, vertically adjustable position, thereinjby meansfof apair of knurled lock nuts 33" vi r' v ii i ,v- V i -The vertical reciprocation of traverse'bar 28 and the funnel-yarn guide mounted thereon, is.

produced "by 'the action of a uniform motion,

heart shaped cam. keyed to a rotating'shaftf 35 which is driven'at any desired speedjbyisnitable means (not, shown). Aspring '36 .isiprovided to maintain the periphery oficam 34 in constant contact with traversebar 28;,the pointof contact being a cam follower 3'! which iSrQ- 39 attached to the'under surface of traverse bar 28. One end of spring 36 is fixedto a bracket 48 on the underside of traverse bar 28 andthe other to a bracket 4| mounted on a portion 42 of the main supporting frame (not shown) which carries the entire traverse mechanism. As cam 34 rotates it forces traverse bar 28 upward against the tension of spring 86 and, after the peak of cam 34 passes cam follower 31. traverse bar 28 is drawn down by the tension of spring 88. s

Guide rods 43 and 44 are provided to keep the reciprocating yam guide 2| and guide bracket assembly 29 in perfect alignment during the yarn winding or cake-building operation, guide rod 48 being round and guide rod 44 being square in cross-section. Both of said rods may be integral with a normally stationary U-shaped platform bracket 45. Rod 43 is provided with a guide sleeve 48 fixed to plate 32. Rod 44 is not pro vided with a sleeve but merely slides in a square guide hole 41 machined in plate 32 which acts as a bearing. 'Traverse bar 28 is pivotally attached to plate 32 by means of a bracket 48 having a bolt 49 passing through said bracket and providing a pivot for traverse bar 28. Bolt 48 is held in position by a nut 58.

The fulcrummf'reciprocating traverse bar 28 is part of a shackle arrangement, generally indicated by reference numeral which is designed to cause funnel yarn guide 2| to reciprocate in a vertical path which is tangent to the normally arcuate path the yarn guide 2| would describe if not compensated for by the shackle arrangement 5|. The shackle arrangement comprises a pair of links 52 pivotally attached at their lower extremity by pins 53 to a bracket 54 mounted on an internally drilled and threaded block 55. Block 55 rides on a pair of cylindrical guide rods 56 which are attached to a bracket 51 by means of nuts 58. Block 55 may be shifted forward or backward to efl'ect any necessary or desirable adjustments in the length of the stroke of traverse bar 28 by suit-ably rotating a threaded rod or worm 59 which passes through block 55. A crank handle 60 is provided at one end of threaded rod 59 rotating freely in a bearing 5| set in bracket 51. Additional traverse adjustment means are provided at the end of traverse bar 28, said means comprising a sliding block 62 pivotally attached by a pin 83 to links 52, and sliding in a rectangular frame 54 attached to the end of traverse bar 28. Block 82 may be moved forward or backward inside the frame 64 through the action of a crank 65 which is, keyed to the end of a threaded rod or worm 66 passing through block 52 and rotating in a hole 81 in frame 84 which acts as a bearing for the end of worm 68.

When the cake building operation has proceeded for a suflicient period of time to build a yarn cake 21 of the desired size, take-up bucket 22 containing the cake 21, is removed and is replaced by an empty bucket so that the yarn.

take-up may be continued. To do this, the traversing of bar 28 is first halted by disengaging the drive mechanism (not shown) rotating shaft: 35 and cam 34, and the funnel yarn guide 2| and bracket assembly 28 are swung clear as shown in Fig. 6. Cover 58 of a box 69, which is adapted to contain any spray thrown off by the rotating buckets is then lifted clear and take-up bucket 22 may then be withdrawn from motor spindle 25 and an empty bucket substituted.-

In order to enable the funnel yarn guide 2| and 4 the traverse mechanism and for swinging the same away fromits normal traversing position. Such means comprises a stationary bracket 18 fixed to box 89 and the U-shaped platform bracket 45 which is connected to bracket 10 by means of a parallel motion links 1| and 12. During the normal traverse stroke platform bracket 45 is held in contact with the stationary bracket 18 by means of a latch 13 which is fixed to said" bracket and engages a rod 14 set in platform.

bracket 45. Latch 13 is spring-loaded by means of a spring 15. The force of said spring may be counteracted to permit latch 13 to be disengaged from rod 14 by rocking a handle 16 in a counterclockwise direction. Handle 16 is connected to an eccentric bushing 11 and the movement of handle 18 in a counter-clockwise direction rotates bushing 11 suiiiciently to permit a spring guide pin or shoulder 18 on which eccentric bushing 11 bears to be pressed thereby to the left, releasing the spring pressure s'uiiiciently to allow latch 13 to be disengaged from rod 14. Upon release of latch 13, as shown in Fig. 6, the whole traverse bar assembly and yarn guide 2| rocks on parallel motion links 1| and 12 as well as on links 52 so that it is drawn upward and backward. This movement permits cover 88 to be removed and the loaded take-up bucket 22 to be lifted out'and replaced by an empty bucket. The yarn winding may be resumed by forcing traverse bar 28 and the-yam guide assembly downward, locking latch 13 on bar 14 by rocking handle 16 in a clockwise direction and dropping yarn in through funnel yarn guide 2| a suiiicient distance so that it will be caught'up by the take-up bucket 22 and wound into a yarn cake 21.

The advantage of our novel traverse mechanism lies in the fact that once the traverse stroke of funnel yam guide 2| has been adjusted as desired by rotating cranks 60 and 65, the yarn take-up bucket 22 may be filled and removed continuously through disengagement of latch 13 without any necessity for readjusting the traverse stroke of the yarn guide 2| at each discharging operation.

-It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of our invention.

Having described our invention, wh'at we desire to secure by Letters Patent is:

the bracket assembly 28 to be swung a suflicient 1. In a yarn traversing device for building a yarn cake in a yarn take-up bucket, the combination with a yarn guide directing a yarn into a rotating take-up bucket, of traversing means for vertically reciprocating the yarn guide including a pivotally mounted traverse bar carrying said yarn guide at the free end thereof and a rotating cam in contact therewith, locking means for detachably securing said yarn guide and traverse bar in operative position, and means ope eratively connected to said traverse bar for varying'the effective length of said traverse bar so as to vary the vertical stroke of said yarn guide.

2. In a yarn traversing device for building a yarn cake in a yarn take-up bucket, the combination with a yarn guide directing a yarn into a a rotating take-up bucket, of traversing means for vertically reciprocating the yarn guide including a pivotally mounted traverse bar carrying said yarn guide at the free end thereof and a rotating cam in contact therewith, locking means for detachably securing said yarn guide and traverse bar in operative position, and means at the fulcrum end of said traverse bar for varying the effective length of said traverse bar so as to vary the vertical stroke of said yarn guide.

3. In a yarn traversing device for building a yarn cake in a yarn take-up bucket, the combination with a yarn guide directing a yarn into a rotating take-up bucket. of traversing means for vertically reciprocating the yarn guide including a pivotally mounted, traverse bar carrying said yarn guide at the free end thereof, a rotating cam in contact with. the underside of the traverse bar for raising said traverse bar on the upward stroke, spring means cooperating with said traverse bar for effecting the downward stroke, look-- ing means for detachably securing said yarn guide and traverse bar in operative position, and means at the fulcrum end of said traverse bar for varying the effective length of said traverse bar so as to vary the vertical stroke of said yarn guide.

4. In a yarn traversing device for building 'a yarn cake in a yarn take-up bucket, the combination with a yarn guide directing a yarn into a rotating take-up bucket, of traversing means for vertically reciprocating the yarn guide including a pivotally mounted traverse bar carrying said yarn guide at the free end thereof, a rotating cam in contact with the underside of the trav-,

erse bar for raising said traverse bar on the upward stroke, spring means cooperating with said traverse bar for effecting the downward stroke, locking means including a spring-loaded latch for detachably securing said yarn guide and traverse bar in operative position, and means at the fulcrum end of said traverse bar for varying the vertical stroke of said yam guide.

5. In a yarn traversing device for building a, yarn cake in a yarn take-up bucket, the combination with a yarn guide directing a yarn into a rotating take-up bucket, of traversing means for vertically reciprocating the yarn guide including a pivotally mounted traverse bar carrying said yarn guide at the free end thereof, a rotating cam in contact with the underside of the traverse bar for raising said traverse bar on the upward stroke, spring means cooperating with said traverse bar for effecting the downward stroke, locking means including a spring-loaded latch for detachably securing said yarn guide and traverse bar in operative position, and means at the fulcrum end of said traverse bar including pivotally mounted links connecting a sliding block having a rotatable worm in said block with a second worm-operated sliding block disposed below the first mentioned sliding block, for varying the stroke of said yarn guide.

6. In a yarn traversing device for building a yarn cake in a yarn take-up bucket, the combination with a yarn guide directing a yarn into a rotating take-up bucket, of traversing means for vertically reciprocating the yarn guide including a pivotally mounted traverse bar carrying said yarn guide at the free end thereof, a rotating cam in contact with the underside of the traverse bar for raising said traverse bar on the upward stroke, spring means cooperating with said traverse bar for effecting the downward stroke, locking means including a fixed bracket carrying a spring-loaded latch, a pivotally mounted bracket linked to said fixed bracket having said yarn guide mounted thereon and said traverse bar pivotaliy attached thereto, means on said pivotally mounted bracket cooperating with said spring-loaded latch for detachably securing said bracket, yarn guide and traverse bar in operative position, and means at the fulcrum end of said traverse bar including pivotally mounted links connecting a. sliding block having a rotatable worm in said block with a second worm-operated, sliding block disposed below the first mentioned sliding block for varying the vertical stroke of said yarn guide.

. WILLIAM J. ELVIN.

ELMER R. STAHL.

REFERENCES CITED The following references are of record in the file ofthis patent: 

